Linux system startup script for Jenkins(Hudson)

xuyaxiu

　　http:///safeRestart
　　There is a startup script for Linux, and provides start|stop|status|try-restart|restart|force-reload|reload|probe  functionality.
　　Please set your own JENKINS_HOME, default is at /lib/var/jenkins
　　/etc/init.d/Hudson
　　#!/bin/sh
　　#
　　#     Linux system statup script for Hudson
　　#     Copyright (C) 2007  Pascal Bleser
　　#
　　#     This library is free software; you can redistribute it and/or modify it
　　#     under the terms of the GNU Lesser General Public License as published by
　　#     the Free Software Foundation; either version 2.1 of the License, or (at
　　#     your option) any later version.
　　#
　　#     This library is distributed in the hope that it will be useful, but
　　#     WITHOUT ANY WARRANTY; without even the implied warranty of
　　#     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
　　#     Lesser General Public License for more details.
　　#
　　#     You should have received a copy of the GNU Lesser General Public
　　#     License along with this library; if not, write to the Free Software
　　#     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307,
　　#     USA.
　　#
　　### BEGIN INIT INFO
　　# Provides:          hudson
　　# Required-Start:    $local_fs $remote_fs $network $time $named
　　# Should-Start: $time sendmail
　　# Required-Stop:     $local_fs $remote_fs $network $time $named
　　# Should-Stop: $time sendmail
　　# Default-Start:     3 5
　　# Default-Stop:      0 1 2 6
　　# Short-Description: Hudson continuous build server
　　# Description:       Start the Hudson continuous build server
　　### END INIT INFO
　　# Check for missing binaries (stale symlinks should not happen)
　　HUDSON_WAR="/usr/lib/hudson/hudson.war"
　　test -r "$HUDSON_WAR" || { echo "$HUDSON_WAR not installed";
　　if [ "$1" = "stop" ]; then exit 0;
　　else exit 5; fi; }
　　# Check for existence of needed config file and read it
　　HUDSON_CONFIG=/etc/sysconfig/hudson
　　test -e "$HUDSON_CONFIG" || { echo "$HUDSON_CONFIG not existing";
　　if [ "$1" = "stop" ]; then exit 0;
　　else exit 6; fi; }
　　test -r "$HUDSON_CONFIG" || { echo "$HUDSON_CONFIG not readable. Perhaps you forgot 'sudo'?";
　　if [ "$1" = "stop" ]; then exit 0;
　　else exit 6; fi; }
　　HUDSON_PID_FILE="/var/run/hudson.pid"
　　# Source function library.
　　. /etc/init.d/functions
　　# Read config
　　[ -f "$HUDSON_CONFIG" ] && . "$HUDSON_CONFIG"
　　# Set up environment accordingly to the configuration settings
　　[ -n "$HUDSON_HOME" ] || { echo "HUDSON_HOME not configured in $HUDSON_CONFIG";
　　if [ "$1" = "stop" ]; then exit 0;
　　else exit 6; fi; }
　　[ -d "$HUDSON_HOME" ] || { echo "HUDSON_HOME directory does not exist: $HUDSON_HOME";
　　if [ "$1" = "stop" ]; then exit 0;
　　else exit 1; fi; }
　　export HUDSON_HOME
　　# Search usable Java. We do this because various reports indicated
　　# that /usr/bin/java may not always point to Java 1.5
　　# see http://www.nabble.com/guinea-pigs-wanted-----Hudson-RPM-for-RedHat-Linux-td25673707.html
　　for candidate in /usr/lib/jvm/java-1.6.0/bin/java /usr/lib/jvm/jre-1.6.0/bin/java /usr/lib/jvm/java-1.5.0/bin/java /usr/lib/jvm/jre-1.5.0/bin/java /usr/bin/java
　　do
　　[ -x "$HUDSON_JAVA_CMD" ] && break
　　HUDSON_JAVA_CMD="$candidate"
　　done
　　JAVA_CMD="$HUDSON_JAVA_CMD $HUDSON_JAVA_OPTIONS -DHUDSON_HOME=$HUDSON_HOME -jar $HUDSON_WAR"
　　PARAMS="--logfile=/var/log/hudson/hudson.log --daemon"
　　[ -n "$HUDSON_PORT" ] && PARAMS="$PARAMS --httpPort=$HUDSON_PORT"
　　[ -n "$HUDSON_DEBUG_LEVEL" ] && PARAMS="$PARAMS --debug=$HUDSON_DEBUG_LEVEL"
　　[ -n "$HUDSON_HANDLER_STARTUP" ] && PARAMS="$PARAMS --handlerCountStartup=$HUDSON_HANDLER_STARTUP"
　　[ -n "$HUDSON_HANDLER_MAX" ] && PARAMS="$PARAMS --handlerCountMax=$HUDSON_HANDLER_MAX"
　　[ -n "$HUDSON_HANDLER_IDLE" ] && PARAMS="$PARAMS --handlerCountMaxIdle=$HUDSON_HANDLER_IDLE"
　　[ -n "$HUDSON_ARGS" ] && PARAMS="$PARAMS $HUDSON_ARGS"
　　if [ "$HUDSON_ENABLE_ACCESS_LOG" = "yes" ]; then
　　PARAMS="$PARAMS --accessLoggerClassName=winstone.accesslog.SimpleAccessLogger --simpleAccessLogger.format=combined --simpleAccessLogger.file=/var/log/hudson/access_log"
　　fi
　　RETVAL=0
　　case "$1" in
　　start)
　　echo -n "Starting Hudson "
　　daemon --user "$HUDSON_USER" --pidfile "$HUDSON_PID_FILE" $JAVA_CMD $PARAMS > /dev/null
　　RETVAL=$?
　　if [ $RETVAL = 0 ]; then
　　success
　　echo > "$HUDSON_PID_FILE"  # just in case we fail to find it
　　MY_SESSION_ID=`/bin/ps h -o sess -p $$`
　　# get PID
　　/bin/ps hww -u "$HUDSON_USER" -o sess,ppid,pid,cmd | \
　　while read sess ppid pid cmd; do
　　[ "$ppid" = 1 ] || continue

　　# this test doesn't work because Hudson sets a new Session>　　# [ "$sess" = "$MY_SESSION_ID" ] || continue
　　echo "$cmd" | grep $HUDSON_WAR > /dev/null
　　[ $? = 0 ] || continue
　　# found a PID
　　echo $pid > "$HUDSON_PID_FILE"
　　done
　　else
　　failure
　　fi
　　echo
　　;;
　　stop)
　　echo -n "Shutting down Hudson "
　　killproc hudson
　　RETVAL=$?
　　echo
　　;;
　　try-restart|condrestart)
　　if test "$1" = "condrestart"; then
　　echo "${attn} Use try-restart ${done}(LSB)${attn} rather than condrestart ${warn}(RH)${norm}"
　　fi
　　$0 status
　　if test $? = 0; then
　　$0 restart
　　else
　　: # Not running is not a failure.
　　fi
　　;;
　　restart)
　　$0 stop
　　$0 start
　　;;
　　force-reload)
　　echo -n "Reload service Hudson "
　　$0 try-restart
　　;;

　　>　　$0 restart
　　;;
　　status)
　　status hudson
　　RETVAL=$?
　　;;
　　probe)

　　## Optional: Probe for the necessity of a>
　　## argument to this init script which is required for a>　　## Note: probe is not (yet) part of LSB (as of 1.9)

　　test "$HUDSON_CONFIG" -nt "$HUDSON_PID_FILE" && echo>　　;;
　　*)
　　echo "Usage: $0 {start|stop|status|try-restart|restart|force-reload|reload|probe}"
　　exit 1
　　;;
　　esac
　　exit $RETVAL